Patents by Inventor Tae Han Lee

Tae Han Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for reducing the risk of call connection failure and system to perform the method
    Patent number: 8374171
    Abstract: A method for reducing a risk of a call connection failure in a video communication providing a multimedia ring back tone service includes replying to a call connection request from a calling terminal, receiving a first message, determining whether the first message includes predetermined data and if the first message includes the predetermined data, setting a second message from the calling terminal as an initial value for a Numbered Simple Retransmission Protocol (NSRP) session with the calling terminal. The predetermined data may include a video temporal spatial tradeoff command, miscellaneous video temporal spatial indication, or a video fast update picture command. A system to perform the method includes a receiving unit, a determination unit, and a setting unit.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: February 12, 2013
    Assignee: Pantech Co., Ltd.
    Inventors: HyunDeuk Cho, Ohyoon Kwon, Tae Han Lee
  • METHOD FOR REDUCING THE RISK OF CALL CONNECTION FAILURE AND SYSTEM TO PERFORM THE METHOD
    Publication number: 20090225684
    Abstract: A method for reducing a risk of a call connection failure in a video communication providing a multimedia ring back tone service includes replying to a call connection request from a calling terminal, receiving a first message, determining whether the first message includes predetermined data and if the first message includes the predetermined data, setting a second message from the calling terminal as an initial value for a Numbered Simple Retransmission Protocol (NSRP) session with the calling terminal. The predetermined data may include a video temporal spatial tradeoff command, miscellaneous video temporal spatial indication, or a video fast update picture command. A system to perform the method includes a receiving unit, a determination unit, and a setting unit.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Applicant: PANTECH CO., LTD.
    Inventors: HyunDeuk CHO, Ohyoon Kwon, Tae Han Lee